Optimized perturbation theory for bound states: toy model and realistic problem
classification
✦ hep-ph
keywords
boundmodelperturbationproblemapplicationasymptoticbrieflycalculation
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Within quantum mechanics model we study the problem of resummation of an asymptotic perturbation series for bound state parameters via optimization of the perturbative expansion. A possible application of the method to the positronium lifetime calculation is also briefly considered.
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